# Scratch Math! vs TTT Letter Board

The clearest difference is in-app purchases: TTT Letter Board at none against Scratch Math!'s 3. Scratch Math!'s advantage is update cadence (every 3 days vs every 8 days) and iOS requirement (15.0 vs 17.0). On price, rating, review sentiment and ratings volume there is nothing between them.

Both are free to download. Scratch Math! sells 3 one-off in-app purchases. TTT Letter Board asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Scratch Math! against 5.0 for TTT Letter Board. Both are backed by a comparable volume of ratings — 3 and 2 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Scratch Math! ships an update every 3 days, TTT Letter Board every 8 days. The most recent releases landed on October 2, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Scratch Math! | TTT Letter Board |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (3 ratings)](https://appshunter.io/ios/app/scratch-math/id6763207187/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/ttt-letter-board/id6773523125/reviews) |
| Number of ratings | **3** | 2 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 8 days |
| Monetization | Free with in-app purchases | **Free** |
| Size | 23 MB | 5 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Mathias Bakken](https://appshunter.io/developer/1895214623) | [TTT Education & Impact](https://appshunter.io/developer/6773523127) |

## What reviewers say

### Scratch Math!

[App page](https://appshunter.io/ios/app/scratch-math/id6763207187)

This app provides a hands-on approach to math practice, allowing users to solve problems directly on screen with a built-in scratchpad. It offers various practice activities for arithmetic and fractions, with visual tools and step-by-step explanations to aid understanding and track progress.

**Highlights:** Built-in digital scratchpad for problem-solving, Visual fraction playground with animated models, Step-by-step worked solutions with explanations, Progress tracking for accuracy and streaks, Offline-first functionality with local profiles, Practice activities for addition, subtraction, multiplication, and division

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Buy Me a Coffee | $4.99 | one-time |
| Buy Me a Coffee | $14.99 | one-time |
| Buy Me a Coffee | $39.99 | one-time |


### TTT Letter Board

[App page](https://appshunter.io/ios/app/ttt-letter-board/id6773523125)

This communication tool provides a private and accessible way for individuals with speech barriers to express themselves. It features an alphabetical grid with color-coded rows and immediate speech output for every tap. Designed for ease of use, it offers various customization options for vision and voice.

**Highlights:** Alphabetical grid with numbers and punctuation, Color-coded rows for visual scanning, Immediate speech output for every tap, Smart backspace and lift-to-clear functions, Forced dark mode for legibility, Copy message function, Offline and private operation

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Scratch Math! free?

Scratch Math! is free to download, with in-app purchases available.

### Is TTT Letter Board free?

TTT Letter Board is free to download, with no in-app purchases.

### Which has better reviews, Scratch Math! or TTT Letter Board?

Scratch Math! and TTT Letter Board are both rated 5.0 out of 5 on the App Store, from 3 and 2 ratings respectively.

### Do Scratch Math! or TTT Letter Board have ads?

Neither Scratch Math! nor TTT Letter Board shows ads.

### Which is updated more often, Scratch Math! or TTT Letter Board?

Scratch Math! ships an update every 3 days, and TTT Letter Board every 8 days. Most recently, Scratch Math! was updated on October 2, 2026 and TTT Letter Board on October 4, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*